Process and apparatus for producing cooling liquids



N. DAHL Oct. 7, 1930.

PROCESS AND APPARATUS FOR PRODUCING COOLING LIQUIDS Filed April 5', 1926-2 Sheets-Sheet 1 Oct. 7, 1930. N; DAHL PROCESS AND APPARATUS FORPRODUCING COCLING LQIDS Filed April 5. 1926 2 Sheets-Sheet 2 i 8 Elgi- NI l' \\V IZ y IIZ l?? faQ/7 for 7 30 description: 7

Patented Oct. 7, 41930 `NimoLArnennen'rnouininnvnNORWAY 7 e 7 u H lrnoonss' Aim nPPARATUsroR,PnonUcINefcooLINe'LIQUIns. l C y 4 '7Applicatie@ fuga Apu 5,1926, `semi No.

7, fTghcginvention relatesto anr apparatus lfor the production of afreezing" brine and more 'particularly to an apparatus wherein4 thebrine is produced by circulating a salt solue tion through a body otice.

7 One object of the invention is'to provide an apparatus of thisolassadaptedto operate in 7 a reliable Vmanner and" to produce a .brineof uniform temperature and salt content. 1

le 7 It is another object of the invention to pro-wV vide anfapparatusof this class,tted with a novel ar'rangeinentr ortlie inlet of the saltsolution into they body of ice, whereby the salt Solution willfbe evenlyy distributed throughout themass of ice, while obviating l anysplashingand subsequent `formation of foam as well as cloggingup, asoccurs with` theusualnozzlesandrperforated tubes. 7

` -More specilically, thelinvention 7. aims Ito 20 devise an arrangement.such that thebrine will be prevented from` falling upon theA pieces ofl ice.

7 i `Another obj e vide means insuring the. proper outflow fof 25 thebrine ltrom the ice container in order lto jpath through the body V7ofioe.

Further objects and advantages of the invvention will be settorth inthetollowing Y prevent the brine from following a preferred.

An embodiment of anV Vapparatus which is adapted for producing' freezingliquid ac oording tothe-inventionvis illustrated in the` accompanyingdrawing, wherein:

-357 Fig. u1 is a vertical longitudinal sectional 7 view of theapparatus. Y e f e Fig. 2 isi atop View of the apparatus` c `Fig is atop view of a bottom grate. l l Figli is asectional vie'wiotthe gratealong 7the line IVA-IV (Fig. 3). d -`7 7 d Figu is a detail vifwofthejgrating, the gratefsections being separated from onefane other. iA 7 In the example illustrated in Figs.` 1 and .2,1 the apparatuscomprises a tank` M `divided into four compartmentsA, B, C, D Vby meansof a number ofpairs of vertical partitions 19, 20. d Each partition 19extends to the top i `the bottom `of the `correspondingcompartofthefinvention isto proi m of the tank and its lower edge isslightly above Y SQfLJandinN-orway Febrnarylf, "fr

nient.` @he otherpartition2Q of eachpair extends to the bottom Jofthecorresponding compartment andl the upper edges "of the 7 parti tionsQ'Ofin the successive compartments l are progressively lower."

' The salt solution is Yfitroducedinto the lirstv compartment A throughapipe 1 atthe'top thereof." Compartment Aisfprovidedmme- 7 diatelyfbelewpipel, with` a` horizontal `'parti-L tion 2l, havinga centralapertureand acerticaltla-nge 3, along the inner edgefthus formi inganfannularspace 2' around said'flange.

Above" said iiange is `mounted-a"grating ar-v rangement 4'having` acentral aperture through whiohflentends anxice loading chute 5ot'suitahle height.

`Similarly, compartments B," C @are `pro"L vided, at the upper part,with horizontalparf titions 22 of a general Ushape, @whose inner edgesare provided with vertical flanges 3,

above whichare `mounted`ggratings' t'and loading chutes 5 similarlltothe preceding.

lEach compartment hasabottorn grating6,to l `be urthen described. "Thesalt` solution delivel-ed 7` tlirough pipe 1 flows through the space2,'7and over the upper edge of the wall 3,

'actingjas a weir, and passesthrough the hori- `Zontal gratingarrangementll; the liquid then flows downwardly Vthrough the fxbody `oiice loaded through chute 5V and traversesfthe fgrating system'G at thebottom of the chamber. `The liquidv then collects in the bottom partlof" compartment A,`7`low s upwardly in compartment B, andthenthroughthe horii Zontal grating tot said'compartment. The

liquid in `compartment' B flows downwardly.

`j as in compartment and,'in`the same manner above described, fromithebottom of coInthrough the passage 12 between `partitions i .19 and QOandflows over the top of flange 3 7` partment B through 'passage `12 tocompartl.'

compartments. 7

ment C, `from whichit passes into'following In the illustrated,example`,`the lastcom-` `partment D is Vnot supplied with ice. From y this,` lastcompartment, freezing liquid is `drawn ott` through an'outlet pipe 14Copening through a greater or less number of compartments in theapparatus, said compartments are provided With similar outlet pipes 14Copening into a common collector 15. Each pipe 14 has a valve Whoseactuating handle is shown diagrammatically at 143.

ln operation, the hoppers or chutes should be constantly iilled withice, so thatieach compartment is filled with ice up to the top' grat#ing so as to avoid the formation oftoam which would take place if'liquid Would fall through a certain distance in the air onto the uppersurface of the icecolumn.

It may be of advantage to introduce salt together With ice through thehoppers 5.

It will be noted that the cooling liquid reaches the horizontal grates 4in anascendingv flow. and then overflows over the Weir 'formedmbyiianges 3, in a general inward direction. In this manner, the formationof foamis eiliciently avoided, due to the elimination of eddies, and aproper distribution of the brine throughout the body of ice is insuredTp v he grating arrangement at thebottom of `each compartmentisespecially designed in orderto secure an even distribution or" the brinethroughthe Whole body7 of'ice. It preterably consists of a number ofsuperposed rec.- tangularjplates 8 With a central opening, each platehaving radially arranged spacing lists Aor iillets.

The .plates may be of vdecreasing size and toward thetoip so that theentire grating ar rangement has the general shape of a pyramid Withstepped outline, the upper plate 6 having no aperture. Due to thisgrating ar rangement, the liquid is caused to pass through `the grate.in a substantially horizontal direction from the periphery towards thecenter. The ice is thereby prevented from obstructing the openings;however, it the ice cakes are tightly packed at one side, the liquidkwill nevertheless be discharged at the opposite side, the ice willfollow the ioW of liquid andthe obstruction will rapidly disy Ordinarysuperposed grates may also be employed in substitution for or inadappear.

dition to the plates above described. Thus, in compartments C, D, it isassumed that the grating arrangement above described is fitted at thecentre'oitl superposed grates 23 having suitable apertures for thispurpose. 'In all cases, the bottom grate consists'oi'A one I.of theabove described rectangular plates 8 having a central opening.

I claim:

1. An apparatus for producing a freezing liquid comprising an icechamber,-a `grate in 'said chamberyan ice loading chute extendingthrough said grate, means adjacent saidA grate for lsupplying-liquidinto the ice 'body through saidgrate, means for disohargingjpthe cooledliquidsubstantially at :the'bottomof saidfchamber and meansf'i'ormaintaining abody ofliquid in Asaid chainthe center. j

ber, whereby a portion of the ice body is submerged in the liquid.

2. An apparatus for producing a freezing liquid comprising an icechamber adapted to contain liquid and a body of ice partially submergedin the liquid, a substantially hori'zontal openwork partition adapted torestrain the ascension Vof the ice in and above 'the liquid, an iceloading chute in said partition, means for delivering liquid above andthrough said partition and discharge means lfor said liquid.

3. An apparatus for producing a freezing liquid `comprising van icechamber, an annular openwork partition horizontally disposed inxy saidchamber, an ice loading chute in said partit-imi` and adapted to `limitwith said partition an' annular space containing no ice, means forsupplying iliquid into said space and jthrough said partition, means formaintaining liquid to a certain level in said chamber, and dischargeAmeans for said liquid. l l

4. Airapparatus for. producing a freez-v ingliquid comprising areceptacle adapted tocontain a column' of ice, supply means 'for theliquid, surrounding saidfice column beloiv the upper level thereof,peri'orations around said ice column adjacent saidsup'ply means,nihereby v liquid is supplied fromthe periphery toward thecentre, andmeans for discharging said liquid Y 5. An apparatus for producing afreezing'liquid comprising an ice chamber, a substantially horizontalpartition' having an upivardly extending iiange limiting a centralaperture, a grate coveringV said Vaperture, a chute for loading iceextending'through said grate, means 2for supplying liquid into theannular channel bounded'by said partition Yand Aflange, whereby liquidVis caused to iiow over the edge of said 'flange through `said grate,and discharge means for the liquid.

G. An apparatus 'for producingV a freezing liquid con'iprising anicechamber adapted to contain 'a 1n'assof`ice,'n1eans for supplying liquidinto said chamber, and a bottom member adapted to'be passed through bythe cooledpliquid, said bottom vmember having substantially radial andlliorizontal ducts,wheif'eby the 'liquid is causedto 'flow therethrougli'from .the periphery ltoward 71 An app'arati'isv as claimed in 4claim G,wherein said` bottom member vcomprises a number' 'of superimposed platesspacedlapart by substantially radial `fianges, each plate having acentral aperture except the uppermost. y

8L Iplant for .producing a' freezing liquid comprising a number of icechambers, means for circulating 4the liquidthrough said chamberssuccessively-a-common pipe for the: cooled `liquid, means)for-'connecting said' common pipe Ywith the 'respectiveice Uli) llo

chambers and obturating means on said coniiecting means.

y 9. An apparatus for the production ofV freezing liquidV comprising acontainer h through which the liquid tobe cooled is circulatedT-aplurality of gratings disposed at `dillierent heightsV in the container7an ice loading cliute extending throughtheupi l permost grating,between'` which gratings a body of ice is placed, said body of ice'exstending through said chute and4 above the uppermost grating and the`said [gratings being so arranged in relation to the inlet and outlet ofthe liquid, 'that-the liquid enters the body `of ice through `theuppermost grating at a pointV below the top sur-V face of the body ofice.

10. An apparatus loi' the production of freezing liquid infwhich an ice`supply chan` nel is arrangedin sucha inannerin a containerY for ice andfreezing liquid `as to pro` duce between` the Walls of the ice supplychannel andthe outer Wall ofthe container aninterspace communicatingWith a'supply conduit for liquid and communicating with y the space toWhich the Vice supply channel leads through a grating arrangement.

In testimony Whereoil VI have signed my y naine to this specification.

NEKoiJAi DAHL.

